Question: In testing a single estimate hypothesis and creating a single estimate confidence interval in a multivariate regression model, are there anything different than in single-variate

In testing a single estimate hypothesis and creating a single estimate confidence interval in a multivariate regression model, are there anything different than in single-variate model? In addition, what is the significance of testing the hypothesis that two regression coefficients are equal?

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1. Identify your reference point when making a decision based on an element of risk.

3. If there are reasonable alternatives, think about your decisions based on the different reference points and see if there are any contradictions in the decisions.